Across
- 3. / 4.0-2.6 gya
- 5. Era / Life begins to appear
- 8. / Pangea splits
- 9. / 199.6 mya-145.5 mya
Down
- 1. / 1st eon
- 2. age of the early dinosaurs
- 4. / period that starts in 65 mya and ends in the present
- 5. / 545 mya-now
- 6. / 2.6 gya-545 mya
- 7. time / Formation of the first supercontinent